MC34933 | H-Bridge Motor Driver

Overview

The NXP^® MC34933 is a two channel H-Bridge driver with a variety of applications, such as auto focus control, that make it ideal for the digital camera market.

Uses the NXP proprietary SMOS8 Bi CMOS process to deliver a low power device with a maximum quiescent current of 100 uA for the motor drive supply and 400 uA for the control logic supply

Employs a VCC detection circuit to sense when the logic supply switches to an off-state with a maximum current of 1u A to extend battery life

Thermal protection circuitry for the H-Bridge drivers to avoid damage to the IC's internal Power MOSFET circuitry

Features

Built-In 2-Channel H-Bridge Driver
H-Bridge Operation Voltage 2.0V~7.0V
Output Current 1.0A @TA=25°C
Low Total RDS(ON) 0.8Ω (Typ), 1.0Ω (Max) @ TA=25 °C
Dual Channel Parallel Driver, RDS(ON) 0.4Ω (Typ). Max DC Current 1.4A
PWM Control Input Frequency up to 200 kHz
Built-In Shoot-Through Current Prevention Circuit
Built-In Charge Pump Circuit (External Cap type)
VCC Low Voltage Detection for logic power supply voltage
Thermal Detection for H-Bridge driver
This product is included in NXP's product longevity program, with assured supply for a minimum of 10 years after launch

Features

Built-In 2-Channel H-Bridge Driver
H-Bridge Operation Voltage 2.0V~7.0V
Output Current 1.0A @TA=25°C
Low Total RDS(ON) 0.8Ω (Typ), 1.0Ω (Max) @ TA=25 °C
Dual Channel Parallel Driver, RDS(ON) 0.4Ω (Typ). Max DC Current 1.4A
PWM Control Input Frequency up to 200 kHz
Built-In Shoot-Through Current Prevention Circuit
Built-In Charge Pump Circuit (External Cap type)
VCC Low Voltage Detection for logic power supply voltage
Thermal Detection for H-Bridge driver
This product is included in NXP's product longevity program, with assured supply for a minimum of 10 years after launch

Key Parametrics

Load Supply Voltage (Min) (V)

2
Load Supply Voltage (Max) (V)

7
Interface and Input Control

Parallel / Parallel
Ambient Operating Temperature (Min to Max) (℃)

-20 to 85

FRDM-34933EP-EVB:Freedom Expansion Board - MC34933, Dual H-Bridge, Stepper Motor Driver, 2.0-7.0 V, 1.4 A